Messier 21 (Swedish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Messier 21" in Swedish language version.

refsWebsite

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9harvard.edu

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7doi.org

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1seds.org

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1books.google.com

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1u-strasbg.fr

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1messier-objects.com

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books.google.com

Adam, Len (2018), Imaging the Messier Objects Remotely from Your Laptop, The Patrick Moore Practical Astronomy Series, Springer, s. 128–130, ISBN 978-3319653853, Bibcode: 2018imor.book.....A, https://books.google.com/books?id=7nNUDwAAQBAJ&pg=PA128.

doi.org

dx.doi.org

Wu, Zhen-Yu; Zhou, Xu; Ma, Jun; Du, Cui-Hua (November 2009), ”The orbits of open clusters in the Galaxy”, Monthly Notices of the Royal Astronomical Society 399 (4): 2146–2164, doi:10.1111/j.1365-2966.2009.15416.x, Bibcode: 2009MNRAS.399.2146W.
Kharchenko, N. V.; Piskunov, A. E.; Röser, S.; Schilbach, E.; Scholz, R.-D. (2005), ”Astrophysical parameters of Galactic open clusters”, Astronomy and Astrophysics 438 (3): 1163–1173, doi:10.1051/0004-6361:20042523, Bibcode: 2005A&A...438.1163K.
Morales, Esteban F. E.; Wyrowski, Friedrich; Schuller, Frederic; Menten, Karl M. (2013), ”Stellar clusters in the inner Galaxy and their correlation with cold dust emission”, Astronomy & Astrophysics 560: A76, doi:10.1051/0004-6361/201321626, Bibcode: 2013A&A...560A..76M.
Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; Scholz, R.-D. (January 2008), ”Tidal radii and masses of open clusters”, Astronomy and Astrophysics 477 (1): 165–172, doi:10.1051/0004-6361:20078525, Bibcode: 2008A&A...477..165P.
Park, Byeong-Gon; Sung, Hwankyung; Kang, Yong Hee (December 2001), ”The Galactic Open Cluster NGC 6531 (M21)”, Journal of the Korean Astronomical Society 34 (3): 149–155, doi:10.5303/JKAS.2001.34.3.149, Bibcode: 2001JKAS...34..149P.
Fedele, D.; van den Ancker, M. E.; Henning, Th.; Jayawardhana, R.; Oliveira, J. M. (February 2010), ”Timescale of mass accretion in pre-main-sequence stars”, Astronomy and Astrophysics 510: 7, doi:10.1051/0004-6361/200912810, A72, Bibcode: 2010A&A...510A..72F.
Forbes, Douglas (September 1996), ”Star Formation in NGC 6531-Evidence From the age Spread and Initial Mass Function”, Astronomical Journal 112: 1073, doi:10.1086/118079, Bibcode: 1996AJ....112.1073F.

harvard.edu

adsabs.harvard.edu

Wu, Zhen-Yu; Zhou, Xu; Ma, Jun; Du, Cui-Hua (November 2009), ”The orbits of open clusters in the Galaxy”, Monthly Notices of the Royal Astronomical Society 399 (4): 2146–2164, doi:10.1111/j.1365-2966.2009.15416.x, Bibcode: 2009MNRAS.399.2146W.
Kharchenko, N. V.; Piskunov, A. E.; Röser, S.; Schilbach, E.; Scholz, R.-D. (2005), ”Astrophysical parameters of Galactic open clusters”, Astronomy and Astrophysics 438 (3): 1163–1173, doi:10.1051/0004-6361:20042523, Bibcode: 2005A&A...438.1163K.
Morales, Esteban F. E.; Wyrowski, Friedrich; Schuller, Frederic; Menten, Karl M. (2013), ”Stellar clusters in the inner Galaxy and their correlation with cold dust emission”, Astronomy & Astrophysics 560: A76, doi:10.1051/0004-6361/201321626, Bibcode: 2013A&A...560A..76M.
Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; Scholz, R.-D. (January 2008), ”Tidal radii and masses of open clusters”, Astronomy and Astrophysics 477 (1): 165–172, doi:10.1051/0004-6361:20078525, Bibcode: 2008A&A...477..165P.
Adam, Len (2018), Imaging the Messier Objects Remotely from Your Laptop, The Patrick Moore Practical Astronomy Series, Springer, s. 128–130, ISBN 978-3319653853, Bibcode: 2018imor.book.....A, https://books.google.com/books?id=7nNUDwAAQBAJ&pg=PA128.
Park, Byeong-Gon; Sung, Hwankyung; Kang, Yong Hee (December 2001), ”The Galactic Open Cluster NGC 6531 (M21)”, Journal of the Korean Astronomical Society 34 (3): 149–155, doi:10.5303/JKAS.2001.34.3.149, Bibcode: 2001JKAS...34..149P.
Fedele, D.; van den Ancker, M. E.; Henning, Th.; Jayawardhana, R.; Oliveira, J. M. (February 2010), ”Timescale of mass accretion in pre-main-sequence stars”, Astronomy and Astrophysics 510: 7, doi:10.1051/0004-6361/200912810, A72, Bibcode: 2010A&A...510A..72F.
van den Ancker, M. E.; Thé, P. S.; de Winter, D. (June 2000), ”The central part of the young open cluster NGC 6383”, Astronomy and Astrophysics 362: 580, Bibcode: 2000A&A...362..580V
Forbes, Douglas (September 1996), ”Star Formation in NGC 6531-Evidence From the age Spread and Initial Mass Function”, Astronomical Journal 112: 1073, doi:10.1086/118079, Bibcode: 1996AJ....112.1073F.

messier-objects.com

”Messier 21” (på engelska). messier-objects.com. 2015. https://www.messier-objects.com/messier-21/. Läst 6 maj 2020.

nasa.gov

apod.nasa.gov

”Messier 20 and 21” (på engelska). NASA: Astronomy Picture of the Day. 28 augusti 2014. https://apod.nasa.gov/apod/ap140828.html. Läst 6 maj 2020.

seds.org

messier.seds.org

Frommert, Hartmut; Kronberg, Christine, ”Messier 21”, SEDS Messier pages (Students for the Exploration and Development of Space), http://messier.seds.org/m/m021.html, läst 12 november 2018.

u-strasbg.fr

simbad.u-strasbg.fr

http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Messier%2021%7C Hämtad 11 november 2018